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< a href = "cp__model__presolve_8h.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2010-2021 Google LLC< / span > < / div >
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< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "comment" > // limitations under the License.< / span > < / div >
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< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #ifndef OR_TOOLS_SAT_CP_MODEL_PRESOLVE_H_< / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #define OR_TOOLS_SAT_CP_MODEL_PRESOLVE_H_< / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < / div >
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< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include < cstdint> < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "cp__model_8pb_8h.html" > ortools/sat/cp_model.pb.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "cp__model__utils_8h.html" > ortools/sat/cp_model_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "presolve__context_8h.html" > ortools/sat/presolve_context.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "presolve__util_8h.html" > ortools/sat/presolve_util.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "sat__parameters_8pb_8h.html" > ortools/sat/sat_parameters.pb.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "affine__relation_8h.html" > ortools/util/affine_relation.h< / a > " < / span > < / div >
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< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "time__limit_8h.html" > ortools/util/time_limit.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keyword" > namespace < / span > < a class = "code" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keyword" > namespace < / span > sat {< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "comment" > // Replaces all the instance of a variable i (and the literals referring to it)< / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "comment" > // by mapping[i]. The definition of variables i is also moved to its new index.< / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "comment" > // Variables with a negative mapping value are ignored and it is an error if< / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > // such variable is referenced anywhere (this is CHECKed).< / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "comment" > // The image of the mapping should be dense in [0, new_num_variables), this is< / span > < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "comment" > // also CHECKed.< / span > < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "namespaceoperations__research_1_1sat.html#ae82ca1b371f76400eefb8e94246c5fe2" > ApplyVariableMapping< / a > (< span class = "keyword" > const< / span > std::vector< int> & mapping,< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "keyword" > const< / span > PresolveContext& < a class = "code" href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > );< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > // Presolves the initial content of presolved_model.< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "comment" > // This also creates a mapping model that encode the correspondence between the< / span > < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "comment" > // two problems. This works as follow:< / span > < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "comment" > // - The first variables of mapping_model are in one to one correspondence with< / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "comment" > // the variables of the initial model.< / span > < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "comment" > // - The presolved_model variables are in one to one correspondence with the< / span > < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "comment" > // variable at the indices given by postsolve_mapping in the mapping model.< / span > < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > // - Fixing one of the two sets of variables and solving the model will assign< / span > < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "comment" > // the other set to a feasible solution of the other problem. Moreover, the< / span > < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > // objective value of these solutions will be the same. Note that solving such< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > // problems will take little time in practice because the propagation will< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > // basically do all the work.< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "comment" > // Note(user): an optimization model can be transformed into a decision problem,< / span > < / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "comment" > // if for instance the objective is fixed, or independent from the rest of the< / span > < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "comment" > // problem.< / span > < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "comment" > // TODO(user): Identify disconnected components and returns a vector of< / span > < / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > // presolved model? If we go this route, it may be nicer to store the indices< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "comment" > // inside the model. We can add a IntegerVariableProto::initial_index;< / span > < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html" > 64< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html" > CpModelPresolver< / a > {< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < a class = "code" href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#a7ebb6a65cb3d0da1dcf19929c38640e0" > CpModelPresolver< / a > (< a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * < a class = "code" href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > ,< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   std::vector< int> * postsolve_mapping);< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "comment" > // Returns false if a non-recoverable error was encountered.< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "comment" > // TODO(user): Make sure this can never run into this case provided that the< / span > < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "comment" > // initial model is valid!< / span > < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#a4357280dffaba15fcb7f932afe0aea3f" > Presolve< / a > ();< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "comment" > // Executes presolve method for the given constraint. Public for testing only.< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#ab37522044009144ac6eff3b3d4c1d271" > PresolveOneConstraint< / a > (< span class = "keywordtype" > int< / span > c);< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "comment" > // Public for testing only.< / span > < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#a6c402792bbe83aa90b75033080755f9b" > RemoveEmptyConstraints< / a > ();< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keywordtype" > void< / span > PresolveToFixPoint();< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "comment" > // Runs the probing.< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "keywordtype" > void< / span > Probe();< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "comment" > // Presolve functions.< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "comment" > // They should return false only if the constraint < -> variable graph didn' t< / span > < / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "comment" > // change. This is just an optimization, returning true is always correct.< / span > < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "comment" > // Invariant about UNSAT: All these functions should abort right away if< / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "comment" > // context_.IsUnsat() is true. And the only way to change the status to unsat< / span > < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "comment" > // is through ABSL_MUST_USE_RESULT function that should also abort right away< / span > < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "comment" > // the current code. This way we shouldn' t keep doing computation on an< / span > < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "comment" > // inconsistent state.< / span > < / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < span class = "comment" > // TODO(user,user): Make these public and unit test.< / span > < / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordtype" > bool< / span > PresolveAutomaton(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "keywordtype" > bool< / span > PresolveCircuit(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "keywordtype" > bool< / span > PresolveRoutes(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keywordtype" > bool< / span > PresolveCumulative(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordtype" > bool< / span > PresolveNoOverlap(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "keywordtype" > bool< / span > PresolveReservoir(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "keywordtype" > bool< / span > PresolveAllDiff(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keywordtype" > bool< / span > PresolveTable(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "keywordtype" > bool< / span > PresolveElement(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "keywordtype" > bool< / span > PresolveInterval(< span class = "keywordtype" > int< / span > c, ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordtype" > bool< / span > PresolveIntDiv(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "keywordtype" > bool< / span > PresolveIntProd(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordtype" > bool< / span > PresolveIntMin(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "keywordtype" > bool< / span > PresolveIntMax(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "keywordtype" > bool< / span > PresolveLinMin(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "keywordtype" > bool< / span > PresolveLinMax(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "keywordtype" > bool< / span > PresolveIntAbs(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < span class = "keywordtype" > bool< / span > PresolveBoolXor(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "keywordtype" > bool< / span > PresolveAtMostOrExactlyOne(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "keywordtype" > bool< / span > PresolveAtMostOne(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "keywordtype" > bool< / span > PresolveExactlyOne(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keywordtype" > bool< / span > PresolveBoolAnd(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordtype" > bool< / span > PresolveBoolOr(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keywordtype" > bool< / span > PresolveEnforcementLiteral(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "comment" > // Regroups terms and substitute affine relations.< / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "comment" > // Returns true if the set of variables in the expression changed.< / span > < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > ProtoWithVarsAndCoeffs> < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "keywordtype" > bool< / span > CanonicalizeLinearExpressionInternal(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > ,< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   ProtoWithVarsAndCoeffs* < a class = "code" href = "cp__model__fz__solver_8cc.html#aed003f5eb5197bc586b7ef2c36a63da2" > proto< / a > ,< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   int64_t* offset);< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keywordtype" > bool< / span > CanonicalizeLinearExpression(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > ,< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   LinearExpressionProto* exp);< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "comment" > // For the linear constraints, we have more than one function.< / span > < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keywordtype" > bool< / span > CanonicalizeLinear(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "keywordtype" > bool< / span > PropagateDomainsInLinear(< span class = "keywordtype" > int< / span > c, ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < span class = "keywordtype" > bool< / span > RemoveSingletonInLinear(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "keywordtype" > bool< / span > PresolveSmallLinear(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "keywordtype" > bool< / span > PresolveLinearOnBooleans(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keywordtype" > void< / span > PresolveLinearEqualityModuloTwo(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "comment" > // To simplify dealing with the two kind of intervals.< / span > < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   int64_t StartMin(< span class = "keyword" > const< / span > IntervalConstraintProto& < a class = "code" href = "resource_8cc.html#af92a8383a05fdf586a52263d358f5ada" > interval< / a > ) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   int64_t EndMax(< span class = "keyword" > const< / span > IntervalConstraintProto& < a class = "code" href = "resource_8cc.html#af92a8383a05fdf586a52263d358f5ada" > interval< / a > ) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   int64_t SizeMin(< span class = "keyword" > const< / span > IntervalConstraintProto& < a class = "code" href = "resource_8cc.html#af92a8383a05fdf586a52263d358f5ada" > interval< / a > ) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   int64_t SizeMax(< span class = "keyword" > const< / span > IntervalConstraintProto& < a class = "code" href = "resource_8cc.html#af92a8383a05fdf586a52263d358f5ada" > interval< / a > ) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "comment" > // SetPPC is short for set packing, partitioning and covering constraints.< / span > < / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "comment" > // These are sum of booleans < =, = and > = 1 respectively.< / span > < / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "keywordtype" > bool< / span > ProcessSetPPC();< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "comment" > // Removes dominated constraints or fixes some variables for given pair of< / span > < / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "comment" > // setppc constraints. This assumes that literals in constraint c1 is subset< / span > < / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < span class = "comment" > // of literals in constraint c2.< / span > < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "keywordtype" > bool< / span > ProcessSetPPCSubset(< span class = "keywordtype" > int< / span > c1, < span class = "keywordtype" > int< / span > c2, < span class = "keyword" > const< / span > std::vector< int> & c2_minus_c1,< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keyword" > const< / span > std::vector< int> & original_constraint_index,< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   std::vector< bool> * marked_for_removal);< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keywordtype" > void< / span > PresolvePureSatPart();< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "comment" > // Extracts AtMostOne constraint from Linear constraint.< / span > < / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "keywordtype" > void< / span > ExtractAtMostOneFromLinear(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "keywordtype" > void< / span > DivideLinearByGcd(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "keywordtype" > void< / span > ExtractEnforcementLiteralFromLinearConstraint(< span class = "keywordtype" > int< / span > ct_index,< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   < span class = "comment" > // Extracts cliques from bool_and and small at_most_one constraints and< / span > < / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "comment" > // transforms them into maximal cliques.< / span > < / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "keywordtype" > void< / span > TransformIntoMaxCliques();< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "comment" > // Converts bool_or and at_most_one of size 2 to bool_and.< / span > < / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < span class = "keywordtype" > void< / span > ExtractBoolAnd();< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < span class = "keywordtype" > void< / span > ExpandObjective();< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keywordtype" > void< / span > TryToSimplifyDomain(< span class = "keywordtype" > int< / span > < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > );< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keywordtype" > void< / span > MergeNoOverlapConstraints();< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "comment" > // Boths function are responsible for dealing with affine relations.< / span > < / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "comment" > // The second one returns false on UNSAT.< / span > < / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < span class = "keywordtype" > void< / span > EncodeAllAffineRelations();< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < span class = "keywordtype" > bool< / span > PresolveAffineRelationIfAny(< span class = "keywordtype" > int< / span > < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > );< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "keywordtype" > bool< / span > ExploitEquivalenceRelations(< span class = "keywordtype" > int< / span > c, ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   ABSL_MUST_USE_RESULT < span class = "keywordtype" > bool< / span > RemoveConstraint(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   ABSL_MUST_USE_RESULT < span class = "keywordtype" > bool< / span > MarkConstraintAsFalse(ConstraintProto* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   std::vector< int> * postsolve_mapping_;< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * context_;< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < a class = "code" href = "classoperations__research_1_1_solver_logger.html" > SolverLogger< / a > * logger_;< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < span class = "comment" > // Used by CanonicalizeLinearExpressionInternal().< / span > < / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   std::vector< std::pair< int, int64_t> > tmp_terms_;< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   };< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < span class = "comment" > // This helper class perform copy with simplification from a model and a< / span > < / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < span class = "comment" > // partial assignment to another model. The purpose is to miminize the size of< / span > < / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "comment" > // the copied model, as well as to reduce the pressure on the memory sub-system.< / span > < / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "comment" > // It is currently used by the LNS part, but could be used with any other scheme< / span > < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "comment" > // that generates partial assignments.< / span > < / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_model_copy.html" > 206< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_model_copy.html" > ModelCopy< / a > {< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_model_copy.html#a4dc4003514ad43b655e41524c32352f1" > ModelCopy< / a > (< a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * < a class = "code" href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > );< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < span class = "comment" > // Copies all constraints from in_model to working model of the context.< / span > < / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < span class = "comment" > // During the process, it will read variable domains from the context, and< / span > < / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   < span class = "comment" > // simplify constraints to minimize the size of the copied model.< / span > < / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   < span class = "comment" > // Thus it is important that the context-> working_model already have the< / span > < / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < span class = "comment" > // variables part copied.< / span > < / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   < span class = "comment" > // It returns false iff the model is proven infeasible.< / span > < / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   < span class = "comment" > // It does not clear the constraints part of the working model of the context.< / span > < / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1sat_1_1_model_copy.html#ad74e75903c729a01bd681095bd51ff4e" > ImportAndSimplifyConstraints< / a > (< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < span class = "keyword" > const< / span > CpModelProto& in_model,< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "keyword" > const< / span > std::vector< int> & ignored_constraints);< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   < span class = "comment" > // Overwrites the out_model to be unsat. Returns false.< / span > < / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "keywordtype" > bool< / span > CreateUnsatModel();< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < span class = "keywordtype" > void< / span > CopyEnforcementLiterals(< span class = "keyword" > const< / span > ConstraintProto& orig,< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   ConstraintProto* dest);< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   < span class = "keywordtype" > bool< / span > OneEnforcementLiteralIsFalse(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > ) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   < / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < span class = "comment" > // All these functions return false if the constraint is found infeasible.< / span > < / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   < span class = "keywordtype" > bool< / span > CopyBoolOr(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < span class = "keywordtype" > bool< / span > CopyBoolAnd(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < span class = "keywordtype" > bool< / span > CopyLinear(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "keywordtype" > bool< / span > CopyAtMostOne(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "keywordtype" > bool< / span > CopyExactlyOne(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > );< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "keywordtype" > bool< / span > CopyInterval(< span class = "keyword" > const< / span > ConstraintProto& < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > , < span class = "keywordtype" > int< / span > c);< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   < a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * context_;< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   int64_t skipped_non_zero_ = 0;< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   < span class = "comment" > // Temp vectors.< / span > < / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   std::vector< int> non_fixed_variables_;< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   std::vector< int64_t> non_fixed_coefficients_;< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   absl::flat_hash_map< int, int> interval_mapping_;< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < span class = "keywordtype" > int< / span > starting_constraint_index_ = 0;< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   std::vector< int> temp_enforcement_literals_;< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   std::vector< int> temp_literals_;< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   };< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < span class = "comment" > // Import the constraints from the in_model to the presolve context.< / span > < / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < span class = "comment" > // It performs on the fly simplification, and returns false if the< / span > < / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "comment" > // model is proved infeasible.< / span > < / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "namespaceoperations__research_1_1sat.html#a980f3e04f0fac2f0f8a7ff4c73572922" > ImportConstraintsWithBasicPresolveIntoContext< / a > (< span class = "keyword" > const< / span > CpModelProto& in_model,< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * < a class = "code" href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > );< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < span class = "comment" > // Copies the non constraint, non variables part of the model.< / span > < / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "namespaceoperations__research_1_1sat.html#a8e28f522e1d211cabbdcff4fd3028593" > CopyEverythingExceptVariablesAndConstraintsFieldsIntoContext< / a > (< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   < span class = "keyword" > const< / span > CpModelProto& in_model, < a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * < a class = "code" href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > );< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   < / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < span class = "comment" > // Convenient wrapper to call the full presolve.< / span > < / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "namespaceoperations__research_1_1sat.html#a5921e7fd881f9a30b1ccb2c90ed672c8" > PresolveCpModel< / a > (< a class = "code" href = "classoperations__research_1_1sat_1_1_presolve_context.html" > PresolveContext< / a > * < a class = "code" href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > ,< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   std::vector< int> * postsolve_mapping);< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   < / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < span class = "comment" > // Returns the index of exact duplicate constraints in the given proto. That< / span > < / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   < span class = "comment" > // is, all returned constraints will have an identical constraint before it in< / span > < / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   < span class = "comment" > // the model_proto.constraints() list. Empty constraints are ignored.< / span > < / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   < span class = "comment" > // Visible here for testing. This is meant to be called at the end of the< / span > < / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   < span class = "comment" > // presolve where constraints have been canonicalized.< / span > < / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < span class = "comment" > // TODO(user): Ignore names? canonicalize constraint further by sorting< / span > < / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "comment" > // enforcement literal list for instance...< / span > < / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   std::vector< int> < a class = "code" href = "namespaceoperations__research_1_1sat.html#a90650dff7fc501dfe17041e0cb5388fd" > FindDuplicateConstraints< / a > (< span class = "keyword" > const< / span > CpModelProto& < a class = "code" href = "cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84" > model_proto< / a > );< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   } < span class = "comment" > // namespace sat< / span > < / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   } < span class = "comment" > // namespace operations_research< / span > < / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   < / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   < span class = "preprocessor" > #endif < / span > < span class = "comment" > // OR_TOOLS_SAT_CP_MODEL_PRESOLVE_H_< / span > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aaffine__relation_8h_html" > < div class = "ttname" > < a href = "affine__relation_8h.html" > affine_relation.h< / a > < / div > < / div >
< div class = "ttc" id = "abitset_8h_html" > < div class = "ttname" > < a href = "bitset_8h.html" > bitset.h< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1_solver_logger_html" > < div class = "ttname" > < a href = "classoperations__research_1_1_solver_logger.html" > operations_research::SolverLogger< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "util_2logging_8h_source.html#l00033" > util/logging.h:33< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_cp_model_presolver_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html" > operations_research::sat::CpModelPresolver< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8h_source.html#l00064" > cp_model_presolve.h:64< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_a4357280dffaba15fcb7f932afe0aea3f" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#a4357280dffaba15fcb7f932afe0aea3f" > operations_research::sat::CpModelPresolver::Presolve< / a > < / div > < div class = "ttdeci" > bool Presolve()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05565" > cp_model_presolve.cc:5565< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_a6c402792bbe83aa90b75033080755f9b" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#a6c402792bbe83aa90b75033080755f9b" > operations_research::sat::CpModelPresolver::RemoveEmptyConstraints< / a > < / div > < div class = "ttdeci" > void RemoveEmptyConstraints()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l00065" > cp_model_presolve.cc:65< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_a7ebb6a65cb3d0da1dcf19929c38640e0" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#a7ebb6a65cb3d0da1dcf19929c38640e0" > operations_research::sat::CpModelPresolver::CpModelPresolver< / a > < / div > < div class = "ttdeci" > CpModelPresolver(PresolveContext *context, std::vector< int > *postsolve_mapping)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05519" > cp_model_presolve.cc:5519< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_cp_model_presolver_html_ab37522044009144ac6eff3b3d4c1d271" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_cp_model_presolver.html#ab37522044009144ac6eff3b3d4c1d271" > operations_research::sat::CpModelPresolver::PresolveOneConstraint< / a > < / div > < div class = "ttdeci" > bool PresolveOneConstraint(int c)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l04522" > cp_model_presolve.cc:4522< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_model_copy_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_model_copy.html" > operations_research::sat::ModelCopy< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8h_source.html#l00206" > cp_model_presolve.h:206< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_model_copy_html_a4dc4003514ad43b655e41524c32352f1" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_model_copy.html#a4dc4003514ad43b655e41524c32352f1" > operations_research::sat::ModelCopy::ModelCopy< / a > < / div > < div class = "ttdeci" > ModelCopy(PresolveContext *context)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05207" > cp_model_presolve.cc:5207< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_model_copy_html_ad74e75903c729a01bd681095bd51ff4e" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_model_copy.html#ad74e75903c729a01bd681095bd51ff4e" > operations_research::sat::ModelCopy::ImportAndSimplifyConstraints< / a > < / div > < div class = "ttdeci" > bool ImportAndSimplifyConstraints(const CpModelProto & in_model, const std::vector< int > & ignored_constraints)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05210" > cp_model_presolve.cc:5210< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_presolve_context_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_presolve_context.html" > operations_research::sat::PresolveContext< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "presolve__context_8h_source.html#l00070" > presolve_context.h:70< / a > < / div > < / div >
2020-09-01 16:00:33 +02:00
< div class = "ttc" id = "acp__model_8pb_8h_html" > < div class = "ttname" > < a href = "cp__model_8pb_8h.html" > cp_model.pb.h< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "acp__model__fz__solver_8cc_html_aed003f5eb5197bc586b7ef2c36a63da2" > < div class = "ttname" > < a href = "cp__model__fz__solver_8cc.html#aed003f5eb5197bc586b7ef2c36a63da2" > proto< / a > < / div > < div class = "ttdeci" > CpModelProto proto< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__fz__solver_8cc_source.html#l00107" > cp_model_fz_solver.cc:107< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "acp__model__solver_8cc_html_a6ac76d8a372013f67c4973012948ec84" > < div class = "ttname" > < a href = "cp__model__solver_8cc.html#a6ac76d8a372013f67c4973012948ec84" > model_proto< / a > < / div > < div class = "ttdeci" > CpModelProto const * model_proto< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l02150" > cp_model_solver.cc:2150< / a > < / div > < / div >
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< div class = "ttc" id = "acp__model__utils_8h_html" > < div class = "ttname" > < a href = "cp__model__utils_8h.html" > cp_model_utils.h< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > < / div > < div class = "ttdeci" > const Constraint * ct< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00043" > demon_profiler.cc:43< / a > < / div > < / div >
< div class = "ttc" id = "aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465" > < div class = "ttname" > < a href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < / div > < div class = "ttdeci" > IntVar * var< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "expr__array_8cc_source.html#l01874" > expr_array.cc:1874< / a > < / div > < / div >
< div class = "ttc" id = "agurobi__interface_8cc_html_a5f287b83a753915ae862fed64f8640a6" > < div class = "ttname" > < a href = "gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6" > context< / a > < / div > < div class = "ttdeci" > GurobiMPCallbackContext * context< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "gurobi__interface_8cc_source.html#l00513" > gurobi_interface.cc:513< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a5921e7fd881f9a30b1ccb2c90ed672c8" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a5921e7fd881f9a30b1ccb2c90ed672c8" > operations_research::sat::PresolveCpModel< / a > < / div > < div class = "ttdeci" > bool PresolveCpModel(PresolveContext *context, std::vector< int > *postsolve_mapping)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05513" > cp_model_presolve.cc:5513< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a8e28f522e1d211cabbdcff4fd3028593" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a8e28f522e1d211cabbdcff4fd3028593" > operations_research::sat::CopyEverythingExceptVariablesAndConstraintsFieldsIntoContext< / a > < / div > < div class = "ttdeci" > void CopyEverythingExceptVariablesAndConstraintsFieldsIntoContext(const CpModelProto & in_model, PresolveContext *context)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05486" > cp_model_presolve.cc:5486< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a90650dff7fc501dfe17041e0cb5388fd" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a90650dff7fc501dfe17041e0cb5388fd" > operations_research::sat::FindDuplicateConstraints< / a > < / div > < div class = "ttdeci" > std::vector< int > FindDuplicateConstraints(const CpModelProto & model_proto)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05965" > cp_model_presolve.cc:5965< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_a980f3e04f0fac2f0f8a7ff4c73572922" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#a980f3e04f0fac2f0f8a7ff4c73572922" > operations_research::sat::ImportConstraintsWithBasicPresolveIntoContext< / a > < / div > < div class = "ttdeci" > bool ImportConstraintsWithBasicPresolveIntoContext(const CpModelProto & in_model, PresolveContext *context)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05475" > cp_model_presolve.cc:5475< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_ae82ca1b371f76400eefb8e94246c5fe2" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#ae82ca1b371f76400eefb8e94246c5fe2" > operations_research::sat::ApplyVariableMapping< / a > < / div > < div class = "ttdeci" > void ApplyVariableMapping(const std::vector< int > & mapping, const PresolveContext & context)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__presolve_8cc_source.html#l05861" > cp_model_presolve.cc:5861< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > Collection of objects used to extend the Constraint Solver library.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dense__doubly__linked__list_8h_source.html#l00021" > dense_doubly_linked_list.h:21< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "apresolve__context_8h_html" > < div class = "ttname" > < a href = "presolve__context_8h.html" > presolve_context.h< / a > < / div > < / div >
2020-09-01 16:00:33 +02:00
< div class = "ttc" id = "apresolve__util_8h_html" > < div class = "ttname" > < a href = "presolve__util_8h.html" > presolve_util.h< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "aresource_8cc_html_af92a8383a05fdf586a52263d358f5ada" > < div class = "ttname" > < a href = "resource_8cc.html#af92a8383a05fdf586a52263d358f5ada" > interval< / a > < / div > < div class = "ttdeci" > IntervalVar * interval< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "resource_8cc_source.html#l00100" > resource.cc:100< / a > < / div > < / div >
2020-09-01 16:00:33 +02:00
< div class = "ttc" id = "asat__parameters_8pb_8h_html" > < div class = "ttname" > < a href = "sat__parameters_8pb_8h.html" > sat_parameters.pb.h< / a > < / div > < / div >
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2021-01-26 11:28:50 +01:00
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